Comparative model analysis of the possibilities of down-conversion into the terahertz (THz) frequency range of radiation of all-solid-state femtosecond Ti:Sapphire laser systems and hybrid systems based on the same type lasers and equipped with amplifiers on XeF(C-A) and XeCl(C-A) molecules of excimer gases with harmonic generators on nonlinear LBO crystals is performed. It is established that when the crystal is cooled to a temperature of 80 K, the coefficient of optical losses in the frequency range from 0.2 to 1.5 THz linearly decreases in the direction of the X axis by 5–6 times down to 0.1–0.2 cm–1. It is shown that the use of hybrid laser systems as pumping sources will allow the power of generated THz pulses to be increased from 3.5 to 20 times.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 164–171, August, 2016.
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Kononova, N.G., Kokh, A.E., Kokh, K.A. et al. Down-Conversion of Short-Wavelength Radiation in LBO Crystal. Russ Phys J 59, 1307–1315 (2016). https://doi.org/10.1007/s11182-016-0907-4
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DOI: https://doi.org/10.1007/s11182-016-0907-4